04186436 is referenced by 59 patents and cites 6 patents.

A voltage step-up circuit, or booster circuit, wherein in response to a first signal a first switching element is enabled to charge a first capacitor with an input voltage while a second switching element is disabled, and in response to a second signal the second switching element is enabled to charge with the input voltage a second capacitor connected in series to the first capacitor while the first switching element is disabled. The sum of the voltages appearing across the first and second capacitors is derived as an output voltage. The "ON" and "OFF" times of the first and second signals may be varied, and the ratio between the "ON" time of the first signal to the "ON" time of the second signal may also be varied. The number of switching elements and capacitors may be increased as needed.

Title
Booster circuit
Application Number
5/871746
Publication Number
4186436
Application Date
January 23, 1978
Publication Date
January 29, 1980
Inventor
Masumi Ishiwatari
Zushi
JP
Agent
Fitzpatrick Cella Harper & Scinto
Assignee
Canon Kabushiki Kaisha
JP
IPC
H02M 7/00
View Original Source